Rotary compressor and refrigeration system therewith
A technology of rotary compressors and compression mechanisms, applied in the direction of rotary piston machinery, compressors, rotary piston pumps, etc., can solve the problem of wasting heat in the heat exchanger on the high-pressure side, which is not conducive to the operating efficiency of the refrigeration cycle device, and loss of the low-pressure side Heat exchanger cooling capacity and other issues
Active Publication Date: 2022-01-04
GUANGDONG MEIZHI COMPRESSOR
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Problems solved by technology
[0004] Among them, when the compressor stops, the refrigerant in the high-pressure side heat exchanger will quickly flow into the low-pressure side heat exchanger through the gap between the components in the compressor, thereby increasing the temperature in the low-pressure side heat exchanger and pressure, waste the heat in the high-pressure side heat exchanger, and lose the cooling capacity in the low-pressure side heat exchanger, which is not conducive to the operating efficiency of the refrigeration cycle device
Method used
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[0036] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0037] In describing the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present inventi...
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The invention discloses a rotary compressor and a refrigeration system with it. The rotary compressor includes: a shell, a compression mechanism part and a pressure relief device. The compression mechanism part is arranged in the shell, and the compression mechanism part includes a cylinder. There is a suction chamber connected with the suction port, and the pressure relief device is arranged on the compression mechanism part. The pressure relief device includes a pressure relief channel and a pressure relief part. It is configured to use the actual pressure difference △Pr between the pressure in the shell and the pressure at the suction port to control the pressure relief part to open or close the pressure relief passage. When it reaches the set pressure △P, the pressure relief part opens the pressure relief channel. Therefore, the ability of the rotary compressor to adjust the pressure difference can be improved through the pressure relief device, so that the pressure balance of the rotary compressor can be quickly realized, and then the need for restarting the rotary compressor can be met, so as to realize the rapid start of the rotary compressor Function.
Description
technical field [0001] The present application relates to the technical field of refrigeration equipment, in particular, to a rotary compressor and a refrigeration system having the same. Background technique [0002] In the cooling cycle device, the refrigerant is converted between low temperature and low pressure and high temperature and high pressure through the compression of the compressor and the throttling of the throttling device, and the heat exchanger is used to exchange heat with the surrounding environment, thereby Realize cooling or heating. [0003] In the related art, when the compressor stops running, the pressure difference between the suction side and the discharge side of the compressor needs to meet a certain range before the compressor can be restarted. In particular, the rolling rotor is a compressor, which requires high precision for the pressure difference, for example: within 1kgf / cm2. Failure to adjust the pressure difference between the intake an...
Claims
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IPC IPC(8): F04C18/356F04C28/24F04C29/00F04C29/12F04C29/06F25B1/04F25B41/40
CPCF04C18/3562F04C28/24F04C29/00F04C29/12F04C29/06F25B1/04F25B41/00F04C2240/50F04C2240/10F04C2240/30
Inventor 高斌
Owner GUANGDONG MEIZHI COMPRESSOR